A na-eji ihe nkwado ejikọ ihe n'azụ ngwaahịa ahụ site n'ụdị ihe mmado otu akụkụ nke ejikọtara n'azụ ngwaahịa ahụ, yana plastik eletrọniki ma ọ bụ ihe eji arụ ọrụ iji nweta nsonaazụ bara uru.

A na-elegharakarị ihe nkwado na akụkụ silicone anya mana ọ bụ isi ihe nwere ike inye aka na nchikọta, na-ebelatakarị ọnụ ahịa n'ihi mmepụta ka mma.